body {
    margin: 0;
}
.el-menu.el-menu--horizontal {
    border-bottom: solid 1px #e4e3da;
}
#main {
    position: absolute;
    top: 30px;
}
.backgrond,
.el-menu--horizontal,
.el-table__body-wrapper,
.el-tree {
    background-color: #ffffff;
    filter: Alpha(Opacity=30);
}

.back {
    margin: 5px 0 0 10px;
    width: 50px;
}
.d-text-icon {
    background-color: #409eff;
}
